From patchwork Mon Jan 8 14:01:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 13513535 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E0C7646527; Mon, 8 Jan 2024 14:01:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="Oy9rb+Ty" Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 4089cbVJ028386; Mon, 8 Jan 2024 14:01:43 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type; s=qcppdkim1; bh=SfiBgtHRUBdygY0Bs1Dt 0reFevWncEuss/A9TFYO1Bk=; b=Oy9rb+TyQn6MpGBYLnbNfZl+wauG+dMKqzIo CaEf93pWywJIMR7O8zhYqp7I+Y+Dmha6kWHIxJGF+fwkXQ6E/fwelsvF9CI0CISa 6/JGLBizp+Xcrd4EzWjRFNb2PGKUpXwPCStf0EuYfmthB4g387gNVSuFVdvlIyvU 9gVELG8invm6DEX3XXfs6uCGxXNx314O9dtvrV3GmDMAL6cmF4s98GcVD8jxXrCh Avv3z59lwNLl4xUDOrp2kGYCUSr3Ju1dvp5EIGob7eXogEwL+KbnFRRFR1+547jF fmofqm+k9qM5z7P9Go8lJsyO6pyq6Ic6NH82y8oln+Fz5xwCrA== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3vg8mx987f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 08 Jan 2024 14:01:43 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 408E1gMl003984 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 8 Jan 2024 14:01:42 GMT Received: from blr-ubuntu-253.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Mon, 8 Jan 2024 06:01:38 -0800 From: Sibi Sankar To: , , , CC: , , , , , Sibi Sankar Subject: [PATCH 1/3] firmware: arm_scmi: Add perf_notify_support interface Date: Mon, 8 Jan 2024 19:31:16 +0530 Message-ID: <20240108140118.1596-2-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240108140118.1596-1-quic_sibis@quicinc.com> References: <20240108140118.1596-1-quic_sibis@quicinc.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: v4zCZrKco8xHRw5bT_OK5dyjStkSyflJ X-Proofpoint-ORIG-GUID: v4zCZrKco8xHRw5bT_OK5dyjStkSyflJ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_01,2023-12-07_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 bulkscore=0 malwarescore=0 clxscore=1011 lowpriorityscore=0 phishscore=0 mlxlogscore=999 adultscore=0 impostorscore=0 mlxscore=0 spamscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401080120 Add a new perf_notify_support interface to the existing perf_ops to export info regarding limit/level change notification support. Signed-off-by: Sibi Sankar --- drivers/firmware/arm_scmi/perf.c | 16 ++++++++++++++++ include/linux/scmi_protocol.h | 8 ++++++++ 2 files changed, 24 insertions(+) diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c index 8ea2a7b3d35d..c167bb5e3607 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -949,6 +949,21 @@ scmi_power_scale_get(const struct scmi_protocol_handle *ph) return pi->power_scale; } +static int scmi_notify_support(const struct scmi_protocol_handle *ph, u32 domain, + struct scmi_perf_notify_info *info) +{ + struct perf_dom_info *dom; + + dom = scmi_perf_domain_lookup(ph, domain); + if (IS_ERR(dom)) + return -EINVAL; + + info->perf_limit_notify = dom->perf_limit_notify; + info->perf_level_notify = dom->perf_level_notify; + + return 0; +} + static const struct scmi_perf_proto_ops perf_proto_ops = { .num_domains_get = scmi_perf_num_domains_get, .info_get = scmi_perf_info_get, @@ -963,6 +978,7 @@ static const struct scmi_perf_proto_ops perf_proto_ops = { .est_power_get = scmi_dvfs_est_power_get, .fast_switch_possible = scmi_fast_switch_possible, .power_scale_get = scmi_power_scale_get, + .perf_notify_support = scmi_notify_support, }; static int scmi_perf_set_notify_enabled(const struct scmi_protocol_handle *ph, diff --git a/include/linux/scmi_protocol.h b/include/linux/scmi_protocol.h index f2f05fb42d28..b0947d004826 100644 --- a/include/linux/scmi_protocol.h +++ b/include/linux/scmi_protocol.h @@ -117,6 +117,11 @@ struct scmi_perf_domain_info { bool set_perf; }; +struct scmi_perf_notify_info { + bool perf_limit_notify; + bool perf_level_notify; +}; + /** * struct scmi_perf_proto_ops - represents the various operations provided * by SCMI Performance Protocol @@ -139,6 +144,7 @@ struct scmi_perf_domain_info { * for a given device * @power_scale_mw_get: indicates if the power values provided are in milliWatts * or in some other (abstract) scale + * @perf_notify_support: indicates if limit and level change notification is supported */ struct scmi_perf_proto_ops { int (*num_domains_get)(const struct scmi_protocol_handle *ph); @@ -165,6 +171,8 @@ struct scmi_perf_proto_ops { bool (*fast_switch_possible)(const struct scmi_protocol_handle *ph, u32 domain); enum scmi_power_scale (*power_scale_get)(const struct scmi_protocol_handle *ph); + int (*perf_notify_support)(const struct scmi_protocol_handle *ph, u32 domain, + struct scmi_perf_notify_info *info); }; /**